2013–2014
Einstein Professor for north American Culture and Cultural History and Head of the Department Culture at the John F. Kennedy Institute of the Freie Universität Berlin
Since 2010
Spokesperson of the DFG research group „Ästhetik und Praxis populärer Serialität“
2002–2012
Professor for English philology and North American Studies, Georg-August-Universität Göttingen
2000, 2005, 2009
Visiting Scholar New York University, University of California, Berkeley, und Nanjing University
